All posts for the month August, 2012

Chilled Mirror Humidity Sensor – Part 1


One of my hobbies is doing crazy projects — it seems the more useful and practical the project, the less likely I am to be interested in doing it. One project I’m working on is building a humidity sensor from scratch — based on the chilled mirror principle. Chilled mirror dew point sensors These sensors […]


Deriving magnetism from electrostatics and relativity

Imagine a world where there was no magnetism at all — just electrostatic forces. It turns out that by adding Einstein’s laws of special relativity to that world, and looking at the effects that special relativity has on moving charges, the laws of magnetism appear — just by mashing electrostatics and relativity together. In other […]